PHP执行linux命令常用函数汇总_php实例
一般情况下,很少会用php去执行linux命令,不过特殊情况下,你也许会用到这些函数。以前我知道有二个函数可以执行linux命令,一个是exec,一个是shell_exec。其实有很多的,结合手册内容,介绍以下6个函数。
1,exec函数
<?php $test = "ls /tmp/test"; //ls是linux下的查目录,文件的命令 exec($test,$array); //执行命令 print_r($array); ?>
返回结果如下:
[root@krlcgcms01 shell]# php ./exec.php Array ( [0] => 1001.log [1] => 10.log [2] => 10.tar.gz [3] => aaa.tar.gz [4] => mytest [5] => test1101 [6] => test1102 [7] => weblog_2010_09 )
2,system函数
<?php $test = "ls /tmp/test"; $last = system($test); print "last: $last\n"; ?>
返回结果:
[root@krlcgcms01 shell]# php system.php 1001.log 10.log 10.tar.gz aaa.tar.gz mytest test1101 test1102 weblog_2010_09 last:weblog_2010_09
3,passthru函数
<?php $test = "ls /tmp/test"; passthru($test); ?>
4,popen函数
<?php $test = "ls /tmp/test"; $fp = popen($test,"r"); //popen打一个进程通道 while (!feof($fp)) { //从通道里面取得东西 $out = fgets($fp, 4096); echo $out; //打印出来 } pclose($fp); ?>
5,proc_open函数
<?php $test = "ls /tmp/test"; $array = array( array("pipe","r"), //标准输入 array("pipe","w"), //标准输出内容 array("pipe","w") //标准输出错误 ); $fp = proc_open($test,$array,$pipes); //打开一个进程通道 echo stream_get_contents($pipes[1]); //为什么是$pipes[1],因为1是输出内容 proc_close($fp); ?>
6,shell_exec函数
<?php $test = "ls /tmp/test"; $out = shell_exec($test); echo $out; ?>
popen,passthru,proc_open,shell_exec的返回结果如下:
[root@krlcgcms01 shell]# php test.php 1001.log 10.log 10.tar.gz aaa.tar.gz mytest test1101 test1102 weblog_2010_09
我能发现的就这几个函数,能执行linux下的命令,我想应当还有吧,欢迎大家补充。

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